GitLab

Moved all bitmap generation related classes into
their own directory.

Bug: 1153969
Change-Id: I42dc429bd2d6d7d59ebbd92558ea08665a3ccac6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2640920
Commit-Queue: Tanya Gupta <tgupta@chromium.org>
Reviewed-by: Kyle Milka <kmilka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#846379}